Oil burner



29, 1932. SA| |SBURY 1,851,871 OIL BURNER Filed Jun 25. 1930 INVENTOR.

8 A If; John M. Eahsb H ATTORNEYS.

Patented Mar. 29, 1932 UNITED STATES JOHN M. SALISBURY, OF NEW ORLEANS, LOUISIANA on BURNER 1 Application filed June 26, "\7

The present invention relates to improvements in. oil stoves and the primary object of the invent-ion is to provide an improved burner drum lifting means for facilitating {lJthe lighting of hydrocarbon burners using annular wicks.

A further object of the invent-ion is to provide an attachment for oil stoves embodying a novel cam arrangement whereby the chimlfiney is raised and'lowered with respect to the burner head thru a partial circumferential movement of the chimney.

A further object of the invention is to provide a novel arrangement whereby perfect giconibustion will be had in oil burners of that U type embodying concentrically arranged combustion cylinders.

A further object of the invention is to provide a device of this character which will be iextremely simple and cheap to manufacture and capable of attachment to existing types of oil stoves.

Other objects and advantages of the invention will be apparent during the course of the 252following detailed description, taken in connection with the accompanying drawings forming a part of this specification and in which drawings:

Figure l is a view in side elevation show- "Zing the chimney in its lowered position.

Figure 2 is a view showing the chimney raised to permit ready and easy lighting of the burner. V

Figure 3 is a vertical section showing the lchimneyin a raised position.

Figure 4 is an enlarged top plan view of the chimney raising or lifting attachment.

In the drawings, and wherein similar reference characters designate corresponding parts thruout the several views the improved burner comprises a burner head or bowl A, a chimney B and supporting means C for adjustably and removably supporting the chimney B upon the burner head A. 45 1 The burner head A is of conventional construction including the ring portion 5 having a depression 6 therein to provide an annular channel or trough for receiving the usual oil ring 7. Formed across the upper end of the ring portion 5 is the usual perforated 1930. Serial No. 464,085.

plate 8 thru which air is permitted to pass upwardly for aiding in proper combustion of the fuel. Outturned from the upper end of the ringportion 5 is an annular upturned flange 19 forming an annular channel 10 about the upper end of the oil ring or wick7.

The burner head or bowl A is of a conventional construction with the exception that with the types of burner heads now in use, an opening is formed axially thru the top plate 8 for slidably receiving a vertically movable lift rod having attached to its upper end a plate or head of various constructions for raising the chimney B upon upward movement of the rod to permit lighting of the wick 7. These lift plates, when in a lowered position form obstructions preventing free passage of air upwardly thru the perforated plate 8 and also prevent easy placing and removing of the oil rings 7.

Connected with the lower end of the ring portion 5 is an oil supply pipe 12 which opens into the annular trough 6 for supplying oil to the wick 7. r

The chimney B is of ordinary construction and includes a pair of concentrically ar ranged inner and outer perforated combustion cylinders or tubes 15 and 16 respectively. The perforated cylinders 15and 16 provide an annular combustion chamber 17 disposed directly above the ring wick 7. The inner cylinder 15 is provided at its lower end with the perforated lower bafile plate 18 and at its upper end with the plate 19'having an axial opening therethru. These combustion cylinders 15 and 16 are supported concentrically within a tubular burner drum or casin 20 by means of two rods 21 extending at a right angle to each other thru the cylinders and having their ends supported in the drum 20. The outer cylinder 16 is spaced from the drum 20 to provide an outer annular chamber 22 extending thruout the height of the chimney. Projecting radially from one side of the drum 20 is a suitable handle 23 for rotation of the chimney upon the supporting collar C. v

The supportingcollar C for supporting the chimney B upon the burner headA includes a base ring 25 having an opening therethru for receiving the burner head ring portion 5. The base ring 25 is secured to the burner head directly beneath the outturned flange 9 as by welding, crimping or any other suitable means whereby the base ring will be held against rotation. Provided at the peripheral edge of the ring is an upstanding annular flange 28 provided with three or more evenly spaced apart upwardly opening cam slots 30 having their cam surfaces 32 inclined ina like direction circumferentially of the flange. The lower end of the cam. surfaces 32 extend to a point substantially on a line with the upper surface of the base ring 25 and terminate at the lower end of vertical flange Walls 33 forming stops for limiting rotation of the chimney in its lowering position. The upperor high end of the cam surfaces-terminate below the top edge of the ring flange and openinto notches 34 spaced slightly below the top edge of the ring flange. These notches or keeper seats 34 serve to retain thechimney in its raised or lifted position.-

' Projecting radially from the lower end portion of the tubular dru1n20is a series of three lift pins 40, one lift pin being provided for each-of thecam slots 30. These lift pins tOare-spaced slightly above the lower end of a the drum and areintended toride upon the cam surfaces '82 when the drum is rotated. The drum 20 has a free but snug rotating lit in the ring flange 28 andwhen in its raised position as shown in Figure 2 still has its lower edge extending a sufiicient distance into thejring flange as to prevent any lateral shifting or tilting of the drum. The handle 23 provides a means for ready rotation of the drum.

-Provided intthe base ring 25 is a series of arcuate slots 45 which aligndirectly beneath theouter annular chamber 22 to permit a free circulation of air upwardly thru the annular chamber for aiding incombustion.

V "lVhen desiring to raise the. chimney B for lighting the wick 7 it is merely necessary to grasp the handle" 23 and partially rotate the chimney so that the lift pins 40 will ride up wardly onthe inclined cam surfaces 32. This rotation will cause the chimney to be lifted vertically and without liability of tilting and when the pins, 40 come to rest in the slightly concaved seats 34 the chimney will be held in a raised position as shown in Figure 2 and to provide suitable openings between the lower,

Since the chimney B does not have any permanent connection with the supporting collar C, and there is no lifting head disposed above the perforated burner plate 8 for elevating the chimney it will be seen that the chimney may be removed as a unit from the supporting collar to permit ready andeasy replacing of thering wick 7.

Vhile the burner in its entirety possesses novel features of construction permitting perfect combustionof the oil by reason of proper circulation of air upwardly thru the burner head, the lifting means may be applied to existingtypes of oil burners thru the mere attachment of the supporting collar to the burner head and the provision of the lift pins 40 in the burner drum.

From the foregoing description it :Will be apparent that a novel-and improved construction ifor oil-burners has been provided embodying novel lift means whereby the chimney is elevated by means of acam arrangement to permit free and easy lighting of the wick.

Changes in detail may be made tothe form ofinvention herein shownv and described, without departing from the spirit of the invention or thescope of the follow-ingiclaims.

I claim:

1. A1 burner comprising i a burner head having a perforated :top. plate and a ring wick encircling the top plate, a lift collar car: ried by the burner head and provided with cam surfaces, and a chimney supported by the collar including concentrically arranged, combustion tubes providing a combustion chamber aligning above said ring: wick and lift pins carried by the chimney for engaging said cam surfaces whereby the: chimney is lifted above the entire burner-head thru a; partial rotation of said-chimney, providing 7, a clear passageway across said topplate.

2. A burner comprising a burner head having a perforated top plate and a ring wick encircling the top plate, a lift; collar carried by the burner head; extending; above said burner head and provided with a cam surface, and a chimney supported by the collar includingconcentrically arranged combustion tubes providing a combustion chamber aligning; above saidring-wick,and a lift pin carried by the chimney v, engaging said cam surface, whereby the chimney is lifted above the entire burner head thru apartial rotation of said chimney, providing a clearpassageway across 7 said top plate.

JOHN M. SALISBURY. 

